baber/WOPTO huggingface dataset:
Patent KR-102232599-B1 (KR)
Title: Computer program for evaluating study level of learner from an objective test and method using the same
Inventor: OH YOUNG SEOK
IPC: G06Q50/20
Filed: 2020-01-07
Granted: 2021-03-25
Abstract: Disclosed are a computer program stored in a medium to evaluate a study level of a learner from a multiple-choice test by being coupled to hardware, which can correctly evaluate the learning or knowledge level of a learner. According to the present invention, the computer program comprises the following steps: receiving a multiple-choice answer sheet from an external device; determining whether there is only one answer or two answers in a question to be scored on the multiple-choice answer sheet; assigning a maximum value among scores set in the question to be scored when there is only one answer to the question to be scored and the single answer is correct and assigning a minimum value among them when the single answer is incorrect; and assigning a third point to the question to be scored when there are two answers to the question to be scored and the answer with the higher priority between two answers is correct, assigning a fourth score to the question to be scored when the answer with the lower priority between the two answers is correct, and assigning a fifth score to the question to be scored when both of the two answers are incorrect. The third score is smaller than the maximum value, the fourth score is smaller than the third score, and the fifth score is smaller than the fourth score and larger than the minimum value.
Patent KR-102433275-B1 (KR)
Title: 고구마를 이용한 술 제조 방법 및 이를 이용하여 제조한 고구마술
IPC: C12G3/026
Filed: 2020-01-20
Granted: 2022-08-17
Abstract: 본 발명은 고구마를 재료로 사용하되 1단 담금 및 2단 담금을 통하여 고구마 발효주와 증류주를 제조하는 방법에 관한 것으로, 고구마는 진홍미, 풍원미, 고건미, 대유미, 신건미, 신율미, 산천미, 진율미, 및 중미 중 적어도 하나를 사용한다.
Patent KR-102301767-B1 (KR)
IPC: H04N7/18
Filed: 2020-01-22
Granted: 2021-09-14
Abstract: 본 발명은 PoE IP 카메라와 네트워크 간의 통신 장애를 자동 복구함과 아울러 장애복구 관련 과정을 관리자가 인지할 수 있도록 하는 네트워크 기반의 카메라 원격 제어장치 및 방법에 관한 것이다. 본 발명은 하나 이상의 PoE(Power over Ethernet) IP 카메라와, 전원과 이더넷을 동시에 상기 PoE IP 카메라로 전달하는 PoE 모듈, 상기 PoE 모듈을 통해 PoE IP 카메라를 원격 제어하면서 UDP/IP 인터넷 프로토콜을 통하여 접속된 상기 PoE IP 카메라들의 네트워크 접속 및 영상정보 전송상태를 SNMP(Simple network management protocol)을 이용하여 모니터링하고, 장애가 발생한 PoE IP 카메라에 대한 원격 장애 복구 절차를 수행하는 관리서버를 포함하여 구성된다.
Patent KR-102274070-B1 (KR)
Title: Method and apparatus for ouputting video provided by streaming
Inventor: BANG JUN HYUN
IPC: G06F3/0486
Filed: 2020-01-22
Granted: 2021-07-06
Abstract: The search intention of a user watching a video is determined based on the direction and movement speed of the drag input of the user. A target time period is determined based on the direction and movement speed to match the search intention. A progress bar is adjusted to output the target time period. A target frame corresponding to the drag input is output. It is possible to provide a method and apparatus for outputting a video based on the touch input of a user.
Patent KR-102318017-B1 (KR)
IPC: G06Q50/26
Filed: 2020-01-23
Granted: 2021-10-29
Abstract: 본 발명은 빈집 관리분석 및 예측 장치 및 방법에 관한 것으로, 보다 상세하게는, 빈집 여부 및 위치를 포함하는 빈집 데이터를 수집하고 빈집 데이터에 대한 분류 기준으로서 빈집 요인을 결정하고 빈집에 대해서 빈집 요인별 데이터를 생성하는 빈집 데이터 수집 가공부, 빈집 데이터 및 빈집 요인별 데이터에 대해 상관 분석을 수행하여 빈집 여부와 빈집 요인간의 상관 관계 및 빈집 발생 가능성을 포함하는 빈집 분석 데이터를 생성하는 빈집 요인 상관 분석부, 빈집 분석 데이터를 통해 예측 빈집 증감율을 산출하여 빈집 예측 데이터를 생성하고 빈집 예측 데이터를 공간 좌표상에 배치하는 빈집 발생 예측부 및 빈집 분석 데이터를 통해 빈집 발생 요인을 도출하고 빈집 발생 요인 및 빈집 발생 가능성을 포함하는 빈집 발생 예측 보고서를 생성하는 빈집 발생 보고서 생성부를 포함한다.
Patent KR-102326585-B1 (KR)
IPC: H01M4/1395
Filed: 2020-01-31
Granted: 2021-11-16
Abstract: 리튬 이차전지용 음극이 개시된다. 본 음극은 집전체, 활물질로서, 상기 집전체 상에 증착된 Si 막(silicon film) 및 상기 집전체와 상기 Si 막 사이에 배치되며 Si의 결정화를 유도하기 위한 결정화 유도 금속을 포함한다.
Patent KR-102142645-B1 (KR)
Inventor: PARK JUN WON
IPC: G06Q50/20
Filed: 2020-02-17
Granted: 2020-08-07
Abstract: An embodiment of the present invention relates to a kiosk system for training. The technical task to be solved is to provide the kiosk system for training that allows the digitally underprivileged who are difficult to use kiosks that are common in daily life to repeatedly experience various types of kiosk programs (e.g., theaters, trains, civil petition machines, etc.) in one kiosk (device) to be helpful in real life thereof. To this end, the present invention comprises: a kiosk program module part in which a plurality of training kiosk programs are stored; a touch screen that displays screens of the training kiosk programs to a user and receives a command by a touch of the user; and a control part that loads, executes and displays a selected training kiosk program on the touch screen when one of a plurality of training kiosk programs is selected by the touch of the user.
Patent KR-102185556-B1 (KR)
Inventor: PARK YOUNG KWON
IPC: A61B5/00
Filed: 2020-02-18
Granted: 2020-12-02
Abstract: In general, non-invasive blood sugar measurement has a problem that a measurement result is inaccurate due to a measurement error generated by noise generated during measurement and difficulty in consistent measurement since a change in blood sugar contained in blood is too small to be measured by a signal even if an optical method is used or an electrical alternating current resistance impedance method is used. To solve the problem, the present invention provides a non-invasive device for measuring blood sugar, comprising: a non-invasive blood sugar measurer measurement unit body; an impedance electrode sensor provided on the bottom surface inside the measurement unit body; a signal generation and measurement unit for scanning frequency by supplying multi-frequency to the impedance electrode sensor, and measuring impedance; a pressure sensor for measuring a contact pressure of a body part that is in contact with the impedance electrode sensor; and a state display LED for displaying different colors according to the pressure measured in the pressure sensor. According to the present invention, it is possible to consistently maintain a contact area and a contact pressure between a body of a user who measures blood sugar and a non-invasive blood sugar sensor of the present invention, and to detect a state of the surface of a measured part such as a finger or the like to perform consistent measurement, thereby accurately measuring blood sugar in a non-invasive method.
Patent KR-102349048-B1 (KR)
IPC: B66B13/20
Filed: 2020-02-20
Granted: 2022-01-11
Abstract: 본 발명은 분리형 엘리베이터 카도어 잠금장치에 관한 것으로, 카도어의 일면에 고정 설치되어 동작하고, 상기 카도어의 잠금을 위한 후크를 포함하는 후크 모듈, 도어 구동장치에 고정 설치되어 동작하면서 상기 후크 모듈과 연동하고, 상기 후크와의 물리적 결합에 의해 상기 잠금을 제공하는 잠금 샤프트를 포함하는 후크 연동 모듈 및 승장도어의 일면에 고정 설치되어 동작하고, 승강기의 정레벨 도달 시 상기 물리적 결합을 해제하여 상기 잠금의 해제를 제공하는 잠금해제 캠을 포함한다.
Patent KR-102293774-B1 (KR)
Title: Underwater Electrospinning Device
Inventor: HAN JAE SIN
IPC: F42B19/24
Filed: 2020-02-24
Granted: 2021-08-25
Abstract: The present invention is an underwater electricity emission device that emits high-voltage electricity in the water to cause an electric shock to a target, thereby disabling the target. The underwater electricity emission device is recyclable unlike conventional mines or torpedoes and thus economical because it is operated in a non-contact manner; can be manufactured and operated at lower cost while disabling high-price targets; has an exterior material of non-conductive reinforced plastic or rubber and a curved outer shape to diffusely reflect radio waves or acoustic radar waves and to be hardly caught by a radar; is operated underwater to have concealment; is also useful for a psychological warfare; and is able to generate chlorine gas for a CBR warfare. The power of the underwater electricity emission device is supplied by electric power generation of a fuel cell, which generates electricity through a chemical reaction of hydrogen and oxygen as fuel and is configured with a fuel-regenerated electric generation structure, so that the underwater electricity emission device is able to perform operations while residing in an operation area for a long period of time.
Patent KR-102280753-B1 (KR)
Title: Technique for marker-based landing of unmanned aerial vehicle
Inventor: JIN WOO SONG
IPC: G05D1/10
Filed: 2020-02-28
Granted: 2021-07-21
Abstract: Disclosed is a method for landing an unmanned aerial vehicle in flight into a marked landing environment including a plurality of internal markers. The disclosed method comprises the steps of: comparing, using at least one processor, a distance between adjacent two among the plurality of internal markers and a dimension of the unmanned aerial vehicle; and determining, using the at least one processor, a landing location for the unmanned aerial vehicle based on a result of the comparison. The landing location is defined by at least one of the plurality of internal markers.
Patent KR-102126330-B1 (KR)
Title: System window
Inventor: BAEK KEE HAN
IPC: E06B9/52
Filed: 2020-04-02
Granted: 2020-06-24
Abstract: An objective of the present invention is to improve sealing power by structural improvement of a window. A system window comprises: a frame in which a pair of horizontal frames arranged to face each other and a pair of vertical frames connecting the horizontal frames are coupled to each other; a plurality of vane units arranged between the vertical frames to rotate; a plurality of rotary shafts which individually penetrate the vane units, and are connected to the vertical frames; a plurality of connection units connected to ends of the rotary shafts; a pair of connection bars arranged on both sides of the connection units to allow the plurality of connection units to be connected thereto; a plate spring rotatably connected to any one of the connection bars; and a handle rotatably connected to the remaining one of the connection bars. A sealing unit inserted in the longitudinal direction of the vane units is arranged on one side of the vane units. A pressing protrusion for pressing the sealing unit is arranged on the other side of the vane units in the longitudinal direction of the vane units to allow the pressing protrusion to press the sealing unit when the vane units rotate.
Patent KR-102314810-B1 (KR)
IPC: G02B1/00
Filed: 2020-04-02
Granted: 2021-10-19
Abstract: 본 발명은 다양한 실시 예들은 음향양자결정 렌즈를 이용한 평면파 발생기에 관한 것으로, 중심에 동일한 크기의 산란체가 형성되고 상기 산란체가 차지하는 부피 이외에는 상기 음향파의 매질로 채워지는 단위 셀이 제1 방향 및 상기 제1 방향과 수직한 제2 방향으로 주기적으로 배열되는 음향양자결정을 포함하고, 상기 산란체는, 상기 제1 방향과 상기 제2 방향에 모두 수직한 제3 방향으로 일정한 길이로 연장된 봉으로서 상기 단위 셀의 크기만큼 이격되게 배치되고, 상기 음향양자결정의 상기 음향파가 출사되는 일면의 윤곽은 평면으로 형성된다. 그 밖의 다양한 실시 예들이 가능하다.
Patent KR-102286467-B1 (KR)
Title: Mobile High Pass App Launch System
Inventor: KIM YOUNG MUN
IPC: G06K19/07
Filed: 2020-04-03
Granted: 2021-08-05
Abstract: A system for launching a mobile high-pass app comprises a fare imposing information matching terminal, wherein the fare imposing information matching terminal comprises a vehicle information storage part, a launching information storage part, and a short-range communication part. The vehicle information storage part stores identification information of a vehicle, the launching information storage part stores the launching information of the mobile high-pass app mounted on a user terminal, and transmits vehicle identification information and launching information to a user terminal in the vehicle. By transmitting together the vehicle identification information and the launching information of the mobile high-pass app set in advance to the user terminal inside the vehicle in accordance with the configuration thereof, the mobile hi-pass app on the mobile communication terminal of the user can be operated by classifying not only whether the user is in the vehicle, but also the vehicle in which the user is riding.
Patent KR-102306593-B1 (KR)
Title: Air purifying device
Inventor: KANG MIN SEONG
IPC: B01D47/12
Filed: 2020-04-07
Granted: 2021-09-30
Abstract: An air purification device is disclosed. The air purification device comprises: a first processing unit removing foreign substances of at least a predetermined size in introduced air to be primarily filtered; and a second processing unit receiving the primarily filtered air to remove the foreign substances of at least the predetermined size to be secondarily filtered.
Patent KR-102307451-B1 (KR)
Inventor: PARK SEONG BEOM
IPC: E06B3/46
Filed: 2020-04-10
Granted: 2021-09-29
Abstract: The present invention relates to a sliding door structure, which comprises: front glass positioned on a front side of a door; rear glass spaced from the front glass in parallel to each other to be positioned on a rear side of the door; a lower frame coupled to a lower portion of the front glass and the rear glass to enable lower portions of the front glass and the rear glass to be spaced from each other to be fixated; and an upper frame coupled to an upper portion of the front glass and the rear glass to enable upper portions of the front glass and the rear glass to be spaced from each other to be fixated. When manufacturing the sliding door, each component including a glass plate is easily assembled in an insertion-fitting method to enable the door to be significantly easily manufactured to facilitate work and improve productivity.
Patent KR-102273105-B1 (KR)
Title: Scupper unit assembly
Inventor: CHO KYUNG HO
IPC: B63B3/66
Filed: 2020-04-13
Granted: 2021-07-02
Abstract: Disclosed is a drain unit assembly. The drain unit assembly is a drain unit assembly for bottom surface drainage treatment of hull or plant equipment, comprising: a unit body having a drain passage having a support portion formed therein; a drain grating disposed to block the end side of the drain passage of the unit body; and a fixing portion formed on the drain grating side in a state that can be detachably fixed to the unit body side by magnetic force.
Patent KR-102349171-B1 (KR)
IPC: H01B1/08
Filed: 2020-04-13
Granted: 2022-01-12
Abstract: 본 발명은 하기 화학식 1로 표시되고, 1차원 채널 구조를 가지는 8원 고리형 3차원 골격 구조의 포타슘 인듐 텔루륨 산화물 및 이를 이용한 이온 전달체에 관한 것이다: 
[화학식 1] 
KM a Te Ⅵ   1-a Te Ⅳ   2 O 7  (M = In, Ga 또는 Sc; 0.1≤a≤0.5).
Patent KR-102358685-B1 (KR)
Title: 배관의 감육상태 모니터링 시스템
IPC: G01N29/34
Filed: 2020-04-16
Granted: 2022-02-04
Abstract: 본 발명의 한 실시예는 원전의 운전 과정 중에 수신되는 배관에서의 유도 초음파 신호의 실시간 차이를 통해 장거리 배관의 전면에서 감육 여부를 판별할 수 있는 배관의 감육상태 모니터링 시스템을 제공하기 위한 것이다. 본 발명의 한 실시예에 따른 배관의 감육상태 모니터링 시스템은 길이방향으로 길게 형성되어 내부 유체 흐름을 안내하는 배관, 그리고 배관의 일측 외주면을 따라 결합되어 배관 내의 감육검출 신호를 발생하는 검출부를 포함하며, 검출부는 자기 변형 스트립 형태로 형성되며, 자기 변형 스트립에서 발생한 전단 변위가 배관으로 전달되어 비틀림 진동 모드가 배관의 길이방향을 따라 전파되어 배관의 감육검출 신호를 발생한다.
Patent KR-102119771-B1 (KR)
Inventor: KIM IN JUNG
IPC: C08L95/00
Filed: 2020-04-29
Granted: 2020-06-08
Abstract: The present invention relates to a low-noise drainage medium-temperature asphalt concrete composition and a construction method using the composition, wherein the low-noise drainage medium-temperature asphalt concrete composition contains, based on 100 parts by weight of asphalt: 1 to 25 parts by weight of styrene isoprene styrene; 1 to 25 parts by weight of a styrene ethylene butylene styrene copolymer; 1 to 25 parts by weight of a petroleum resin; 500 to 2,000 parts by weight of aggregate; 30 to 150 parts by weight of aggregate powder; 0.1 to 2 parts by weight of cellulose fiber; 0.1 to 2 parts by weight of wax; and 0.1 to 2 parts by weight of an antioxidant. The low-noise drainage medium-temperature asphalt concrete composition according to the present invention, the low-noise drainage medium-temperature asphalt concrete composition having SIS, SEBS, and aggregate powder of improved grain size to be specific, is highly durable, and is capable of low-noise drainage. In addition, plastic deformation, aging, and/or peeling is unlikely to occur and pouring and/or laying can be performed at a medium temperature lower than the temperature of a plain asphalt concrete composition.
Patent KR-102148633-B1 (KR)
Inventor: PARK SEUNG IL
IPC: F03G7/00
Filed: 2020-05-08
Granted: 2020-08-26
Abstract: The present invention relates to a hydraulic booster for converting a reciprocating motion to a rotary motion using a volume-variable piston. According to the present invention, the hydraulic booster comprises a pair of hydraulic boosting units (10a, 10b), wherein the hydraulic boosting units (10a, 10b) comprise a main cylinder (100), a guide (110), a volume-variable piston (200), and a fluid storage and supply unit (170). According to the present invention, the volume of an upper portion of a main piston can be further reduced.
Patent KR-102254491-B1 (KR)
Title: Automatic fly drone embedded with intelligent image analysis function
Inventor: KANG WOO SUK
IPC: H04N7/18
Filed: 2020-05-09
Granted: 2021-05-21
Abstract: Disclosed is an autonomous flight drone equipped with an intelligent image analysis function. The autonomous flight drone equipped with an intelligent image analysis function has a camera (thermal imaging camera, general camera). The drone itself provides intelligent image analysis of camera images (using chipsets for image analysis such as FPGA, TPU, IPU, etc.) and remote drone movement control. During autonomous flight, the drone detects objects in the drone's thermal imaging camera/general camera image by the drone's own intelligent image analysis module, extracts and classifies features of the objects of the camera image, identifies people (displaced people) in case of a forest fire/fire and a person/ship during a patrol on the sea/along the coast, transmits image data in which the objects in the drone's camera image are identified to a media server (RTSP server) through a communication network (RF, Wi-Fi, LTE 4G/ 5G, IoT communication network), and displays the transmitted image data to a client of a ground terminal (RTSP client).
Patent KR-102201057-B1 (KR)
Inventor: LEE YEONG SU
IPC: C12N1/20
Filed: 2020-05-14
Granted: 2021-01-13
Abstract: The present invention relates to a method for manufacturing tea using aronia fruits, and tea using aronia fruits manufactured thereby. According to the present invention, the method comprises the following steps: firstly aging aronia fruits; secondly aging the firstly aged aronia fruits; drying the secondly aged aronia fruits; pulverizing the dried aronia fruits to aronia powder, and adding an aronia concentrate obtained by compressing crushed aronia fruits to obtain extract and concentrating the obtained extract, to the aronia powder before kneading the mixture; molding aronia dough obtained from the previous step into granules; aging the molded aronia granules; and drying the aged aronia granules. After firstly aging of the aronia fruits at 28 to 30°C for 70 to 72 hours, the firstly aged aronia fruits are secondly aged at 43 to 45°C for 185 to 187 hours, such that tea can be manufactured even if the aronia fruits are dried at 48 to 50°C, thereby providing an advantage of preventing useful components of aronia fruits from being destroyed.
Patent KR-102322580-B1 (KR)
Title: A Multipurpose Sterilizer
IPC: A63B60/36
Filed: 2020-05-20
Granted: 2021-11-04
Abstract: The present invention relates to a multi-purpose sterilizer capable of sterilizing a golf club and the like. The multi-purpose sterilizer comprises: a disinfection unit which emits a sterilization means selected from among ultraviolet rays and a sterilization agent; and a detachable means capable of coupling and decoupling the sterilizer to and from a separate mounting means that assists in installing the sterilizer provided with the disinfection unit on the bottom side of a caddy bag and transferring the sterilizer, and repeating the coupling and decoupling. The detachment means includes a protrusion part with one end protruding and the other end fixed to the disinfection unit. The protrusion part is formed to have a thickness corresponding to the size of a grip hole such that when the protrusion part is inserted into the grip hole provided at the end of a grip of a rounding golf club including a shaft and the grip, the protrusion part is tightened by elastic restoring force of the grip and the sterilizer and the golf club are coupled to each other, and when the protrusion part inserted into the grip hole is pulled out, the sterilizer and the golf club are separated from each other, and accordingly, the rounding golf club can be used as a mounting means to assist in receiving and withdrawing the sterilizer on and from the bottom side of the caddy bag. In addition, the sterilizer further includes a mounting means selected from a stand, a wall hanging means, and a suction plate, and thus can sterilize various objects to be sterilized such as an indoor space, a wardrobe, and a refrigerator. Moreover, the sterilizer can be easily handled in a logistics process and can be easily maintained and managed.
Patent KR-102367070-B1 (KR)
Title: 가구용 다리 어셈블리
IPC: A47B13/02
Filed: 2020-05-25
Granted: 2022-02-23
Abstract: 본 발명은 가구용 다리 어셈블리에 관한 것으로, 목재로 이루어져 고급스러운 이미지를 연출하면서도 견고한 조립이 가능하고 가구를 바닥에 안정적으로 지지할 수 있고 바닥에 높이차 또는 경사가 존재하는 경우에도 안정적으로 가구를 설치할 수 있는 가구용 다리 어셈블리를 제공한다.
Patent KR-102431859-B1 (KR)
Title: 사용자 위치정보 기반의 대중교통요금 결제방법 및 이를 위한 장치
IPC: G06Q30/02
Filed: 2020-06-17
Granted: 2022-08-10
Abstract: 컴퓨팅 장치가, 통행자의 {위도, 경도, 시각} 정보를 기초로 상기 통행자의 통행이력인 통행자 이동이력을 결정하는 단계, 상기 컴퓨팅 장치가, 제1차량의 {위도, 경도, 시각} 정보를 기초로 상기 제1차량의 이동이력인 제1차량 이동이력을 결정하는 단계, 상기 컴퓨팅 장치가, 상기 통행자 이동이력과 상기 제1차량 이동이력 간에 서로 일치하는 제1일치구간을 결정하는 단계, 및 상기 컴퓨팅 장치가, 상기 제1일치구간을 기초로 상기 통행자에게 상기 제1차량의 이용에 대한 요금을 부과하는 단계를 포함하는 교통요금 부과방법을 공개한다.
Patent KR-102344436-B1 (KR)
Title: False eyelashes
Inventor: SON SEUNG HEE
IPC: A41G5/02
Filed: 2020-06-18
Granted: 2021-12-27
Abstract: The present invention provides false eyelashes characterized by comprising: a first elastic member having elasticity; a second elastic member having elasticity and including both ends coupled to both ends of the first elastic member; and false eyelash strands attached to at least one of the first elastic member or the second elastic member, wherein the application of external impact to the first elastic member and the second elastic member causes elastic deformation of the first elastic member or the second elastic member so that the first elastic member and the second elastic member are engaged with each other at once. In addition, the present invention provides false eyelashes characterized by comprising: a first elastic member having elasticity; a second elastic member having elasticity and including both ends coupled to both ends of the first elastic member; and a joint member including false eyelash strands. The joint member includes an attachment means so that the joint member is detachably attached to at least one of the first elastic member or the second elastic member and the application of external impact to the first elastic member and the second elastic member causes elastic deformation of the first elastic member or the second elastic member so that the first elastic member and the second elastic member are engaged with each other at once. According to the false eyelashes of the present invention, when attaching the false eyelashes as a part of eye makeup, a user can attach the false eyelashes without using an adhesive and tweezers so that the risk of damaging eyes with the adhesive and tweezers can be eliminated. In addition, the adhesive is not used to attach the false eyelashes so that the false eyelashes can be easily removed and a case, in which the user's eyelashes are pulled out by the adhesive, can be prevented and the user's eyelashes can be protected.
Patent KR-102237311-B1 (KR)
Title: Polishing pad, preparation method thereof and preparation method of semiconductor device using same
Inventor: AHN JAE IN
IPC: H01L21/67
Filed: 2020-06-19
Granted: 2021-04-07
Abstract: An embodiment relates to a polishing pad used in a chemical mechanical planarization (CMP) process of a semiconductor, a preparation method thereof, and a method of preparing a semiconductor device using the same. According to the embodiment, the polishing pad controls a surface roughness property of the polishing pad after polishing, thereby improving a polishing rate and significantly reducing a residue, a scratch, and a chatter mark on the surface of a wafer.